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  • Received: Jul. 20, 2020

    Accepted: Aug. 28, 2020

    Posted: Oct. 14, 2020

    Published Online: Oct. 23, 2020

    The Author Email: Tie-Jun Wang (

    DOI: 10.3788/COL202018.121402

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    Yaoxiang Liu, Tie-Jun Wang, Na Chen, Hao Guo, Haiyi Sun, Lu Zhang, Zheng Qi, Yuxin Leng, Zhanshan Wang, Ruxin Li. Simultaneous generation of controllable double white light lasers by focusing an intense femtosecond laser pulse in air[J]. Chinese Optics Letters, 2020, 18(12): 121402

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Chinese Optics Letters, Vol. 18, Issue 12, 121402 (2020)

Simultaneous generation of controllable double white light lasers by focusing an intense femtosecond laser pulse in air

Yaoxiang Liu1,2,3, Tie-Jun Wang2,3,*, Na Chen2,3, Hao Guo2,3, Haiyi Sun2,3, Lu Zhang4, Zheng Qi4, Yuxin Leng2,3, Zhanshan Wang1, and Ruxin Li2,3

Author Affiliations

  • 1MOE Key Laboratory of Advanced Micro-structured Materials, Institute of Precision Optical Engineering, School of Physics Science and Engineering, Tongji University, Shanghai 200092, China
  • 2State Key Laboratory of High Field Laser Physics and CAS Center for Excellence in Ultra-intense Laser Science, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • 3Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
  • 4Science and Technology on Space Physics Laboratory, Beijing 100076, China


We report on a simultaneous generation of double white light lasers through filamentation by focusing a femtosecond laser pulse. The appearance of the two white light lasers can be controlled by tilting the focusing lens. The spectral bandwidth and the pulse energy of the double white light lasers were controlled by tuning laser filamenting pulse energy and polarization. Two white light lasers with pulse energies of 1.54 mJ and 1.84 mJ, respectively, were generated with the pump laser energy of 7.43 mJ. Besides being beneficial in understanding the multiple white light lasers generation process through multiple filamentation and its control, the results are also valuable for white light laser-based applications.


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